Works matching Quasars

Results: 3106

The Quasar Saxophone Quartet: A Continuous Influence in Musical Creation for 25 Years!

Published in:

Circuit: Musiques Contemporaines, 2019, v. 29, n. 3, p. 115

By:

LeBlanc, Jimmie

Publication type:

Article

Le quatuor de saxophones Quasar: un rayonnement continu de création musicale depuis 25 ans!

Published in:

Circuit: Musiques Contemporaines, 2019, v. 29, n. 3, p. 55, doi. 10.7202/1066486ar

By:

LeBlanc, Jimmie

Publication type:

Article

Can Lorentz relativistic mass explain the lack of velocity time dilation in quasars?

Published in:

Physics Essays, 2023, v. 36, n. 2, p. 123, doi. 10.4006/0836-1398-36.2.123

By:

Haug, Espen Gaarder;
Spavieri, Gianfranco

Publication type:

Article

The WISSH quasars project VIII. Outflows and metals in the circum-galactic medium around the hyper-luminous z ~ 3.6 quasar J1538+08.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2020, v. 635, p. 1, doi. 10.1051/0004-6361/201936197

By:

Travascio, A.;
Zappacosta, L.;
Cantalupo, S.;
Piconcelli, E.;
Battaia, F. Arrigoni;
Ginolfi, M.;
Bischetti, M.;
Vietri, G.;
Bongiorno, A.;
D'Odorico, V.;
Duras, F.;
Feruglio, C.;
Vignali, C.;
Fiore, F.

Publication type:

Article

Constraining the geometry and kinematics of the quasar broad emission line region using gravitational microlensing: II. Comparing models with observations in the lensed quasar HE0435−1223.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2019, v. 629, p. 1, doi. 10.1051/0004-6361/201731087

By:

Hutsemékers, D.;
Braibant, L.;
Sluse, D.;
Goosmann, R.

Publication type:

Article

Eddington ratios of dust-obscured quasars at z ≲ 1: Evidence supporting dust-obscured quasars as young quasars.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2024, v. 690, p. 1, doi. 10.1051/0004-6361/202450290

By:

Kim, Dohyeong;
Kim, Yongjung;
Im, Myungshin;
Glikman, Eilat;
Kim, Minjin;
Urrutia, Tanya;
Lim, Gu

Publication type:

Article

A quasar-galaxy merger at z ∼ 6.2: Black hole mass and quasar properties from the NIRSpec spectrum.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2024, v. 685, p. 1, doi. 10.1051/0004-6361/202348535

By:

Loiacono, Federica;
Decarli, Roberto;
Mignoli, Marco;
Farina, Emanuele Paolo;
Bañados, Eduardo;
Bosman, Sarah;
Eilers, Anna-Christina;
Schindler, Jan-Torge;
Strauss, Michael A.;
Vestergaard, Marianne;
Wang, Feige;
Blecha, Laura;
Carilli, Chris L.;
Comastri, Andrea;
Connor, Thomas;
Costa, Tiago;
Dotti, Massimo;
Fan, Xiaohui;
Gilli, Roberto;
Jun, Hyunsung D.

Publication type:

Article

Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). II. Discovery of 32 quasars and luminous galaxies at 5.7 < z ≤ 6.8.

Published in:

Publications of the Astronomical Society of Japan, 2018, v. 70, n. Supp1, p. 1, doi. 10.1093/pasj/psx046

By:

Yoshiki MATSUOKA;
Masafusa ONOUE;
Nobunari KASHIKAWA;
Kazushi IWASAWA;
STRAUSS, Michael A.;
Tohru NAGAO;
Masatoshi IMANISHI;
Chien-Hsiu LEE;
Masayuki AKIYAMA;
Naoko ASAMI;
James BOSCH;
Sébastien FOUCAUD;
Hisanori FURUSAWA;
Tomotsugu GOTO;
GUNN, James E.;
Yuichi HARIKANE;
Hiroyuki IKEDA;
Takuma IZUMI;
Toshihiro KAWAGUCHI;
Satoshi KIKUTA

Publication type:

Article

Finding Rare Quasars: VLA Snapshot Continuum Survey of FRI Quasar Candidates Selected from the LOFAR Two-Metre Sky Survey (LoTSS).

Published in:

Galaxies (2075-4434), 2022, v. 10, n. 1, p. 2, doi. 10.3390/galaxies10010002

By:

Gürkan, Gülay;
Croston, Judith;
Hardcastle, Martin J.;
Mahatma, Vijay;
Mingo, Beatriz;
Williams, Wendy L.

Publication type:

Article

Properties of Very Broad Line MgII Radio-Loud and Radio-Quiet Quasars.

Published in:

Galaxies (2075-4434), 2021, v. 9, n. 4, p. 74, doi. 10.3390/galaxies9040074

By:

Chakraborty, Avinanda;
Bhattacharjee, Anirban;
Chatterjee, Suchetana

Publication type:

Article

The main sequence of quasars: The taming of the extremes.

Published in:

Astronomische Nachrichten, 2022, v. 343, n. 1/2, p. 1, doi. 10.1002/asna.20210082

By:

Marziani, Paola;
Bon, Edi;
Bon, Natasa;
D'Onofrio, Mauro;
Punsly, Brian;
Śniegowska, Marzena;
Czerny, Bożena;
Panda, Swayamtrupta;
Martnez Aldama, Mary Loli;
del Olmo, Ascensión;
Deconto‐Machado, Alice;
Negrete, C. Alenka;
Dultzin, Deborah;
Buendia, Tania;
Garnica, Karla

Publication type:

Article

The VLBI structure of radio-loud Broad Absorption Line quasars.

Published in:

Astronomische Nachrichten, 2016, v. 337, n. 1/2, p. 184, doi. 10.1002/asna.201512291

By:

Liu, Y.;
Jiang, D. R.;
Gu, M.

Publication type:

Article

The most distant quasar at z = 7.08: Probable retrograde rotation of an accreting supermassive black hole.

Published in:

Astronomische Nachrichten, 2015, v. 336, n. 3, p. 312, doi. 10.1002/asna.201412161

By:

Gnedin, Yu. N.;
Mikhailov, A. G.;
Piotrovich, M. Yu.

Publication type:

Article

The WISSH quasars project: VII. The impact of extreme radiative field in the accretion disc and X-ray corona interplay.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2020, v. 635, p. 1, doi. 10.1051/0004-6361/201937292

By:

Zappacosta, L.;
Piconcelli, E.;
Giustini, M.;
Vietri, G.;
Duras, F.;
Miniutti, G.;
Bischetti, M.;
Bongiorno, A.;
Brusa, M.;
Chiaberge, M.;
Comastri, A.;
Feruglio, C.;
Luminari, A.;
Marconi, A.;
Ricci, C.;
Vignali, C.;
Fiore, F.

Publication type:

Article

Testing the paradigm: First spectroscopic evidence of a quasar–galaxy Mpc-scale association at cosmic dawn.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2019, v. 631, p. 1, doi. 10.1051/0004-6361/201936813

By:

Decarli, Roberto;
Mignoli, Marco;
Gilli, Roberto;
Balmaverde, Barbara;
Brusa, Marcella;
Cappelluti, Nico;
Comastri, Andrea;
Nanni, Riccardo;
Peca, Alessandro;
Pensabene, Antonio;
Vanzella, Eros;
Vignali, Cristian

Publication type:

Article

Discovery of intergalactic bridges connecting two faint z ∼ 3 quasars.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2019, v. 631, p. 1, doi. 10.1051/0004-6361/201936211

By:

Arrigoni Battaia, F.;
Obreja, A.;
Prochaska, J. X.;
Hennawi, J. F.;
Rahmani, H.;
Bañados, E.;
Farina, E. P.;
Cai, Z.;
Man, A.

Publication type:

Article

Radio loudness along the quasar main sequence.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2019, v. 630, p. 1, doi. 10.1051/0004-6361/201936270

By:

Ganci, V.;
Marziani, P.;
D'Onofrio, M.;
del Olmo, A.;
Bon, E.;
Bon, N.;
Negrete, C. A.

Publication type:

Article

Proximate molecular quasar absorbers: Excess of damped H2 systems at zabs ≈ zQSO in SDSS DR14.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2019, v. 627, p. 1, doi. 10.1051/0004-6361/201935371

By:

Noterdaeme, P.;
Balashev, S.;
Krogager, J.-K.;
Srianand, R.;
Fathivavsari, H.;
Petitjean, P.;
Ledoux, C.

Publication type:

Article

Black hole mass estimates in quasars: A comparative analysis of high- and low-ionization lines.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2019, v. 627, p. 1, doi. 10.1051/0004-6361/201935265

By:

Marziani, P.;
del Olmo, A.;
Martínez-Carballo, M. A.;
Martínez-Aldama, M. L.;
Stirpe, G. M.;
Negrete, C. A.;
Dultzin, D.;
D'Onofrio, M.;
Bon, E.;
Bon, N.

Publication type:

Article

GALEX colours of quasars and intergalactic medium opacity at low redshift.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2019, v. 623, p. N.PAG, doi. 10.1051/0004-6361/201832673

By:

Deharveng, J.-M.;
Milliard, B.;
Péroux, C.;
Small, T.

Publication type:

Article

AGN feedback on molecular gas reservoirs in quasars at z ~ 2.4.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2017, v. 605, p. 1, doi. 10.1051/0004-6361/201730672

By:

Carniani, S.;
Marconi, A.;
Maiolino, R.;
Feruglio, C.;
Brusa, M.;
Cresci, G.;
Cano-Díaz, M.;
Cicone, C.;
Balmaverde, B.;
Fiorentino, F.;
Ferrara, A.;
Gallerani, S.;
La Franca, F.;
Mainieri, V.;
Mannucci, F.;
Netzer, H.;
Piconcelli, E.;
Sani, E.;
Schneider, R.;
Shemmer, O.

Publication type:

Article

Quasars as standard candles: I. The physical relation between disc and coronal emission.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2017, v. 602, p. 1, doi. 10.1051/0004-6361/201630079

By:

Lusso, E.;
Risaliti, G.

Publication type:

Article

Observations of the Lyman series forest towards the redshift 7.1 quasar ULAS J1120+0641.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2017, v. 601, p. 1, doi. 10.1051/0004-6361/201630258

By:

Barnett, R.;
Warren, S. J.;
Becker, G. D.;
Mortlock, D. J.;
Hewett, P. C.;
McMahon, R. G.;
Simpson, C.;
Venemans, B. P.

Publication type:

Article

SALT long-slit spectroscopy of quasar HE 0435-4312: fast displacement of the Mg II emission line.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2017, v. 601, p. 1, doi. 10.1051/0004-6361/201628257

By:

Średzińska, J.;
Czerny, B.;
Hryniewicz, K.;
Krupa, M.;
Kurcz, A.;
Marziani, P.;
Adhikari, T. P.;
Basak, R.;
You, B.;
Wang, J.-M.;
Hu, C.;
Pych, W.;
Bilicki, M.

Publication type:

Article

Probing the radio loud/quiet AGN dichotomy with quasar clustering.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2017, v. 600, p. 1, doi. 10.1051/0004-6361/201526433

By:

Retana-Montenegro, E.;
Röttgering, H. J. A.

Publication type:

Article

Broadband nuclear emission in two radio-loud broad absorption line quasars.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2015, v. 574, p. 1, doi. 10.1051/0004-6361/201424729

By:

Kunert-Bajraszewska, M.;
Katarzyński, K.;
Janiuk, A.

Publication type:

Article

GTC spectra of z ≈ 2.3 quasars: comparison with local luminosity analogs.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2014, v. 570, p. 1, doi. 10.1051/0004-6361/201423975

By:

Sulentic, Jack W.;
Marziani, Paola;
del Olmo, Ascensión;
Dultzin, Deborah;
Perea, Jaime;
Negrete, C. Alenka

Publication type:

Article

A large sample of Kohonen-selected SDSS quasars with weak emission lines: selection effects and statistical properties.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2014, v. 568, p. 1, doi. 10.1051/0004-6361/201423810

By:

Meusinger, H.;
Balafkan, N.

Publication type:

Article

Gas reservoir of a hyper-luminous quasar at z = 2.6.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2014, v. 566, p. 1, doi. 10.1051/0004-6361/201423719

By:

Feruglio, C.;
Bongiorno, A.;
Fiore, F.;
Krips, M.;
Brusa, M.;
Daddi, E.;
Gavignaud, I.;
Maiolino, R.;
Piconcelli, E.;
Sargent, M.;
Vignali, C.;
Zappacosta, L.

Publication type:

Article

Emission lines properties of the radio-loud quasar LAMOST J1131+3114 (Research Note).

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2014, v. 564, p. 1, doi. 10.1051/0004-6361/201321750

By:

Z. X. Shi;
G. Comte;
A. L. Luo;
Y. H. Zhao;
J. K. Zhao;
T. D. Oswalt;
F. C. Wu

Publication type:

Article

X-ray observation of ULAS J1120+0641, the most distant quasar at z = 7.08.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2014, v. 563, p. 1, doi. 10.1051/0004-6361/201323051

By:

Moretti, A.;
Ballo, L.;
Braito, V.;
Caccianiga, A.;
Ceca, R. Della;
Gilli, R.;
Salvaterra, R.;
Severgnini, P.;
Vignali, C.

Publication type:

Article

Ultraviolet variability of quasars: dependence on the accretion rate.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2013, v. 560, p. 1, doi. 10.1051/0004-6361/201322410

By:

Meusinger, H.;
Weiss, V.

Publication type:

Article

A glance at the host galaxy of high-redshift quasars using strong damped Lyman-α systems as coronagraphs.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2013, v. 558, p. 1, doi. 10.1051/0004-6361/201321745

By:

Finley, Hayley;
Petitjean, Patrick;
Pâris, Isabelle;
Noterdaeme, Pasquier;
Brinkmann, Jonathan;
Myers, Adam D.;
Ross, Nicholas P.;
Schneider, Donald P.;
Bizyaev, Dmitry;
Brewington, Howard;
Ebelke, Garrett;
Malanushenko, Elena;
Malanushenko, Viktor;
Oravetz, Daniel;
Pan, Kaike;
Simmons, Audrey;
Snedden, Stephanie

Publication type:

Article

A multi-epoch spectroscopic study of the BAL quasar APM 08279+5255.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2013, v. 557, n. 1, p. 1, doi. 10.1051/0004-6361/201321864

By:

Trevese, D.;
Saturni, F. G.;
Vagnetti, F.;
Perna, M.;
Paris, D.;
Turriziani, S.

Publication type:

Article

The ESO UVES advanced data products quasar sample.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2013, v. 556, n. 6, p. 1, doi. 10.1051/0004-6361/201321154

By:

Zafar, T.;
Péroux, C.;
Popping, A.;
Milliard, B.;
Deharveng, J.-M.;
Frank, S.

Publication type:

Article

The ESO UVES advanced data products quasar sample.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2013, v. 556, n. 6, p. 1, doi. 10.1051/0004-6361/201321153

By:

Zafar, Tayyaba;
Popping, Attila;
Péroux, Céline

Publication type:

Article

COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses XII. Time delays of the doubly lensed quasars SDSS J1206+4332 and HS 2209+1914.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2013, v. 553, n. 3, p. 1, doi. 10.1051/0004-6361/201321140

By:

Eulaers, E.;
Tewes, M.;
Magain, P.;
Courbin, F.;
Asfandiyarov, I.;
Ehgamberdiev, Sh.;
Rathna Kumar, S.;
Stalin, C. S.;
Prabhu, T. P.;
Meylan, G.;
Van Winckel, H.

Publication type:

Article

Microlensing of the broad line region in 17 lensed quasars.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2012, v. 544, n. 1, p. 1, doi. 10.1051/0004-6361/201219125

By:

Sluse, D.;
Hutsemékers, D.;
Courbin, F.;
Meylan, G.;
Wambsganss, J.

Publication type:

Article

Near-infrared spectroscopy of a nitrogen-loud quasar SDSS J1707+6443.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2012, v. 543, n. 2, p. A143-1, doi. 10.1051/0004-6361/201118477

By:

Araki, N.;
Nagao, T.;
Matsuoka, K.;
Marconi, A.;
Maiolino, R.;
Ikeda, H.;
Hashimoto, T.;
Taniguchi, Y.;
Murayama, T.

Publication type:

Article

Resolved [CII] emission in a lensed quasar at z = 4.4.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2012, v. 543, n. 2, p. A114-1, doi. 10.1051/0004-6361/201118705

By:

Gallerani, S.;
Neri, R.;
Maiolino, R.;
Martín, S.;
De Breuck, C.;
Walter, F.;
Caselli, P.;
Krips, M.;
Meneghetti, M.;
Nagao, T.;
Wagg, J.;
Walmsley, M.

Publication type:

Article

Resolved [CII] emission in a lensed quasar at z = 4.4.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2012, v. 543, n. 1, p. 1, doi. 10.1051/0004-6361/201118705

By:

Gallerani, S.;
Neri, R.;
Maiolino, R.;
Martí n, S.;
De Breuck, C.;
Walter, F.;
Caselli, P.;
Krips, M.;
Meneghetti, M.;
Nagao, T.;
Wagg, J.;
Walmsley, M.

Publication type:

Article

Spectroscopy of extended Lyα envelopes around z = 4.5 quasars.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2012, v. 542, n. 2, p. A91:1, doi. 10.1051/0004-6361/201015153

By:

North, P. L.;
Courbin, F.;
Eigenbrod, A.;
Chelouche, D.

Publication type:

Article

Unusual quasars from the Sloan Digital Sky Survey selected by means of Kohonen self-organising maps.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2012, v. 541, p. 1, doi. 10.1051/0004-6361/201118143

By:

Meusinger, H.;
Schalldach, P.;
Scholz, R. D.;
in der Au, A.;
Newholm, M.;
de Hoon, A.;
Kaminsky, B.

Publication type:

Article

The circum-galactic medium of quasars: transverse and line-of-sight absorptions.

Published in:

Astrophysics & Space Science, 2020, v. 365, n. 11, p. 1, doi. 10.1007/s10509-020-03889-0

By:

Sandrinelli, A.;
Falomo, R.;
Treves, A.;
Paiano, S.;
Scarpa, R.

Publication type:

Article

Blue outliers among intermediate redshift quasars.

Published in:

Astrophysics & Space Science, 2016, v. 361, n. 1, p. 1, doi. 10.1007/s10509-015-2590-2

By:

Marziani, P.;
Sulentic, J.;
Stirpe, G.;
Dultzin, D.;
Olmo, A.;
Martínez-Carballo, M.

Publication type:

Article

The fraction and mid-infrared properties of broad absorption line quasars from the Sloan Digital Sky Survey.

Published in:

Astrophysics & Space Science, 2014, v. 349, n. 2, p. 947, doi. 10.1007/s10509-013-1669-x

By:

Pu, Xingting

Publication type:

Article

Properties of radio-detected broad absorption line quasars from the Sloan Digital Sky Survey.

Published in:

Astrophysics & Space Science, 2013, v. 345, n. 2, p. 355, doi. 10.1007/s10509-013-1412-7

By:

Pu, Xingting

Publication type:

Article

QSO MUSEUM: II. Search for extended Lyα emission around eight z ∼ 3 quasar pairs.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2024, v. 691, p. 1, doi. 10.1051/0004-6361/202450959

By:

Herwig, Eileen;
Arrigoni Battaia, Fabrizio;
González Lobos, Jay;
Farina, Emanuele P.;
Man, Allison W. S.;
Bañados, Eduardo;
Kauffmann, Guinevere;
Cai, Zheng;
Obreja, Aura;
Prochaska, J. Xavier

Publication type:

Article

Exploring the links between quasar winds and radio emission along the main sequence at high redshift.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2024, v. 691, p. 1, doi. 10.1051/0004-6361/202449976

By:

Deconto-Machado, A.;
del Olmo, A.;
Marziani, P.

Publication type:

Article

Ubiquitous radio emission in quasars: Predominant AGN origin and a connection to jets, dust, and winds.

Published in:

Astronomy & Astrophysics / Astronomie et Astrophysique, 2024, v. 691, p. 1, doi. 10.1051/0004-6361/202348982

By:

Calistro Rivera, G.;
Alexander, D. M.;
Harrison, C. M.;
Fawcett, V. A.;
Best, P. N.;
Williams, W. L.;
Hardcastle, M. J.;
Rosario, D. J.;
Smith, D. J. B.;
Arnaudova, M. I.;
Escott, E.;
Gürkan, G.;
Kondapally, R.;
Miley, G.;
Morabito, L. K.;
Petley, J.;
Prandoni, I.;
Röttgering, H. J. A.;
Yue, B.-H.

Publication type:

Article